scholarly journals Heavy Oil Hydrocarbons and Kerogen Destruction of Carbonate–Siliceous Domanic Shale Rock in Sub- and Supercritical Water

Processes ◽  
2020 ◽  
Vol 8 (7) ◽  
pp. 800 ◽  
Author(s):  
Zukhra R. Nasyrova ◽  
Galina P. Kayukova ◽  
Alexey V. Vakhin ◽  
Richard Djimasbe ◽  
Artem E. Chemodanov
Keyword(s):  
Supercritical Water ◽  
Aromatic Hydrocarbons ◽  
Organic Content ◽  
Shale Rock ◽  
Gas Formation ◽  
Oil Hydrocarbons ◽  
Saturated And Aromatic Hydrocarbons ◽  
Gas Chromatography Mass Spectroscopy ◽  
Molecular Components ◽  
The Given

This paper discusses the results of the influences of subcritical (T = 320 °C; P = 17 MPa) and supercritical water (T = 374 °C; P = 24.6 MPa) on the yield and composition of oil hydrocarbons generated from carbonaceous–siliceous Domanic shale rocks with total organic content (Corg) of 7.07%. It was revealed that the treatment of the given shale rock in sub- and supercritical water environments resulted in the decrease of oil content due to the intensive gas formation. The content of light hydrocarbon fractions (saturated and aromatic hydrocarbons) increased at 320 °C from 33.98 to 39.63%, while at 374 °C to 48.24%. Moreover, the content of resins decreased by almost twice. Insoluble coke-like compounds such as carbene–carboids were formed due to decomposition of kerogen after supercritical water treatment. Analysis of oil hydrocarbons with FTIR method revealed a significant number of oxygen-containing compounds, which are the hydrogenolysis products of structural fragments formed after destruction of kerogen and high-molecular components of oil. The gas chromatography–mass spectroscopy (GC–MS) method was applied to present the changes in the composition of mono- and dibenzothiophenes, which indicate conversion of heavy components into lighter aromatic hydrocarbons. The specific features of transforming trace elements in rock samples, asphaltenes, and carbene–carboids were observed by using the isotopic mass-spectrometry method.

Formation and inhibition of polycyclic aromatic hydrocarbons from the gasification of cyanobacterial biomass in supercritical water

Chemosphere ◽  
2020 ◽  
Vol 253 ◽  
pp. 126777
Author(s):  
Huiwen Zhang ◽  
Chenyu Wang ◽  
Xiaoman Zhang ◽  
Runhao Zhang ◽  
Lei Ding
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Supercritical Water ◽  
Aromatic Hydrocarbons ◽  
Polycyclic Aromatic ◽  
Cyanobacterial Biomass

A STUDY OF AROMATIC HYDROCARBONS IN QAIYARAH NAPTHA FRACTION 50-165° C USING GAS CHROMATOGRAPHY/MASS SPECTROSCOPY

1997 ◽  
Vol 15 (1-2) ◽  
pp. 127-135 ◽  
Author(s):  
Omar M. Ramadhan ◽  
Regab A. Buker ◽  
Ahmed A. Thanoon
Keyword(s):  
Gas Chromatography ◽  
Mass Spectroscopy ◽  
Aromatic Hydrocarbons ◽  
Gas Chromatography Mass Spectroscopy

Oxygenation of saturated and aromatic hydrocarbons with H2O2 catalysed by the carbonyl thiophenolate iron complex (OC)3Fe(PhS)2Fe(CO)3

2013 ◽  
Vol 218-219 ◽  
pp. 93-98 ◽  
Author(s):  
Eduard E. Karslyan ◽  
Lidia S. Shul’pina ◽  
Yuriy N. Kozlov ◽  
Armando J.L. Pombeiro ◽  
Georgiy B. Shul’pin
Keyword(s):  
Aromatic Hydrocarbons ◽  
Iron Complex ◽  
Saturated And Aromatic Hydrocarbons

New possibilities of applications of the Barker quasi-lattice theory. Prediction of gE and hE of binary systems whose one component is formed by n-alkanes

1979 ◽  
Vol 44 (6) ◽  
pp. 1698-1714 ◽  
Author(s):  
Vladimír Dohnal ◽  
Robert Holub ◽  
Jiří Pick
Keyword(s):  
Aromatic Hydrocarbons ◽  
Lattice Theory ◽  
Binary Systems ◽  
Derived Relations ◽  
Orientation Effects ◽  
The Given ◽  
Derivatives Of ◽  
Arbitrary Component ◽  
Excess Quantities ◽  
Good Agreement

For binary systems of the type an arbitrary component + n-alkane we derived relations, on the basis of the Barker theory and on the basis of the group contribution concept, for predicting gE and hE from one system to another when the n-alkane length is changed. To carry out the prediction it is not necessary to evaluate any adjustable parameters. The developed method was tested using a large number of different systems covering alcohols, amines, ketones, esters, chlorinated derivatives of hydrocarbons, aromatic hydrocarbons and n-alkanes from n-pentane to n-hexadecane. The results of predictions are in very good agreement with experimental data in the cases, when the n-alkanes involved are not longer than n-decane. Systematic regular deviations in hE in the cases, when at least one of n-alkanes involved is longer, can be explained by the presence of orientation effects in the pure longer n-alkanes. The correction suggested by us for these effects improves considerably results obtained. The developed method appears to be suitable for the systematic prediction of excess quantities of systems of the given type and represents an effective test of the Barker theory.

Oxidative cracking of three to five-member ring polycyclic aromatic hydrocarbons in subcritical and supercritical water

2021 ◽  
Vol 167 ◽  
pp. 105050
Author(s):  
Ahmad Rafizan Mohamad Daud ◽  
Cesar Berrueco ◽  
Klaus Hellgardt ◽  
Marcos Millan ◽  
Rafael Kandiyoti
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Supercritical Water ◽  
Aromatic Hydrocarbons ◽  
Oxidative Cracking ◽  
Polycyclic Aromatic
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